Valve.



W. E. COAKLEY.

VALVE.

APPLICATION mao 056.7. 1911.

1,298,668. Patented Apr. 1, 1919.

UNITED STATES PATENT OFFICE;

WILLIAM E. COAKLEY, OF CLEVELAND, OHIO, ASSIGNOR TO THE OHIO BLOWERVALVE.

This invention relates to improvements in valves, and in the presentinstance the improvements are shown as embodied in a float valve,although the invention will be under' stood as having a broader field ofuse.

The general objects of the invention are to cheapen the cost ofreduction and maintenance of valves, an to veryv materially prolongtheir life. Further, to provide a construction aiordingquick andconvenient renewal of worn out parts, and withal to insure a maximum ofeiiciency.

To these ends my invention conslsts 1n providing a reversible andrenewable valveseat; a reversible and renewable valve-plug; a structurewherein the valve-seat may be quickly and conveniently inserted; aplunger reciprocable within a bore of the structure and lto which thevalve-plug may be loosely connected, wherefore it will adjust itself toaccurately and tightly seat, uthe valve-plug being connected to theplunger by means of a pin held in place by coperation with the walls ofthe bore; and wherein the plunger is retained against withdrawal fromthe bore by the ioat lever, which in turn is connected to the structureby an easily removable pin.

It follows from this that, by simply removing the pin which connects theioat lever to the valve casing or structure, `the plunger may bewithdrawn and the valveplug removed for the purpose of reversal orrenewal.` The valve casing is constructed of separable parts betweenwhich the Ivalveseat is clamped and a' separation of these parts alordsaccess to the valve-seat for the purpose of reversing or renewing itnThese Specification ot Letters Patent.

Patented Apr. v1, 1919.

Application med December 7, 1917. Serial No. 206,092.

structural details will be better understood by reference to theaccompanying drawing.

Figure 1 is a longitudinal section through the valve, .showing itapplied to the wall of a; tank; Flg. 2 is an enlarged section on the lmeof Fig. 1; and Fig. 3 shows in perspective the plun er, valve-plug, thepin for connecting the p ug to the plunger, and the valve-seat, inseparated condition.

One end of the casing 1 is recessed at 2 and is internally threaded forthe reception of` an externally threaded extension 3 which passesthrough an aperture l in the-tank wall 5 and is adapted to have appliedto it a nut 6 for clamping the casing to the wall. A supplylpipe 7 isthreaded into the outer end' of the extension 3. The casing 1 isprovided with a central bore 10 of smaller dlameter than the recess 2,wherefore a sh-oulder 11 is provided against which a diskI l2 is adaptedto be firmly clamped by the extension, the 'outer end of the extensionbeing provided with a wrench receiving portion 13, enabling theextension to be firmly screwed into place. The disk 12 constitutes thereversible valve-seat herein'before mentioned, and accordingly will bereferred to hereinafter as such. The recess 2 is substantiallyconcentric with the bore 10 and is enough greater in diameter than thevalveseat to permit of the easy introduction of the seat ywhile assuringthat the seat will be accurately located with its central aperture 14 inaxlal aline'ment with the bore 10.

The valve-seat 12 is preferably made of comparatively hard non-corrosivemetal, and each end of its bore 14 is countersunk tc very accurately fitthe taper of the valve p ug.

A plunger 15 is guided within the bore 10 of the casing and its forwardend is recessed at 16 for the reception of the valveplu 17, the valveplug and opposed walls of t e recess 16 being provided with aliningapertures for the reception of a pin 18 of less diameter than saidapertures and of a length less than the diameter of the bore.

16 so that it may move, to a limited extent, in all directions.Therefore, when the plunger is advanced toward the valve-seat by theaction ofthe oat lever, asA Will hereinafter be explained, the advancingend of the plug accurately Ends its seat within the adjacent tapered endof the bore 14;, it being l recalled that. the taper of the valve-plugAand seat areidentical, wherefore aftight lit between the parts isinsured.

The valve-plug is preferably made of com` para-tively hard non-corrosivemetal, and has both of its ends tapered so that it may be reversed. topresenta new working surface to the valve seat when one has become worn.These plugs may be turned from ordinary stock rod of pro-per quality andtherefore produced very cheaply. f

, Toward 'ts inner end, the casing 1 is shaped to produce a chamber 20which opens through the side of the casing, and the op pbsed walls ofthe chamber are provided with perforated ears 21 within which arejournaled the ends of a pin 22 that has' pivted upon it, between theears, a float lever 23. This lever has attached to its outer endthe-usualioat .242., An extension 2 5 on the inner end of the floatlever occupies a socket 26 in the plunger l5 and acts to reciprocate theplunger as the lever is oscillated upon its oivot by the rise and fallofthe iioat. rlhe voat lever is limited in its downward movement bytheengagement of a finger 28 with an adjacent portion of the casing l. Theo eration'of the valve is obvious. As the liquid level within the tankdrops, the float descends and rocks the lever23'to move theplunger in adirection to withdraw the valve-plug from engagementwith the seat,

"permitting a flow of the liquid in through the supply pipe, 7, theextension 3, the bore A10 and casing outlet 29. As the supply isreplenished and the liquid level rises, the ioat 24 is elevated and theaforesaid operation reversed to seat the valve and stopthe inow ofliquid.

, From the foregoing description it will be ,seen that my inventionprovides a comparatively simple valve construction wherein the onlyparts subjected 'to appreciable wear may be cheaply, quickly, and easilyreversedor renewed. Also attention is recalled to the fact that in my`improved' construction thevalve-seat and valve-body are originally pro#vided with accurately tting coperating parts, permitting the parts to bemade of com aratively hard metal, thus greatly pro-` longing their life,as well as insuring a perfectly tight lit.

-l-laving thus l claim is:

l. A valve comprising9 in combination, a casing having a bore and avalve seat disdescribed my invention, what,v

naeaeee posed at one end thereof, a plunger movable within the boretoward and from the valve seat, the end of thev plunger adjacent thevalve seat being recessed,'a cylindrical valve plug having its endstapered inwardly from its diameter and loosely fitting within therecess, the valve plug having a ltransverse casing having a guideway, avalve seat disj posed at one end of the guideway, a member movablewithin` the guideway toward and from the valve seat, the end of themember adjacent the seat being recessed, a valve plug fittinglooselywithin the recess and having opposite ends of identical formationfor cooperation with the seat, the valve plug and member having aliningapertures, a pin loosely fitting within the apertures of the valve plugand member and confined therein by a portion of the guideway, and meansfor moving the aforesaid member.

8. A valve comprising, in combination, a casing .having a guideway, avalve seat disposed at one end of the uideway, a member I tmovablewithin the guideway toward and by opposed portions of the guideway, andmeans removably carried by the casing for actuating the aforesaidmember. and retaining it within the guideway.

4. A valve comprising, in combination, a casing having a bore and avalve seat disposed at one end thereof, a member movable within the boretoward and from the valve seat, the end of said member adjacent the`valve seat having a recess, a cylindrical valve plu havging its opposedends correspondingly tapered inward from the diameter of the plug, thevalve plug and member having alining apertures, a pin fitting looselywithin said apertures and retained therein by the wall of the bore, andmeans for actuat ing the aforesaid member.

5. A valve comprising, in combination, a

. casing having a bore and a valve seat disvalve seat having a recess, acylindrical valve plug litting loosely within the recess and j valveplug and member and confined therein fitting loosely within the recessand .im

having its opposite ends correspondingly tapered inward from thediameter ofthe.

plug, thevalve plug and member having alining apertures, a pin fittingloosely' Within said apertures and retained therein by the Wall of thebore, a pivotal member carried by the casing, and an actuating memberremovably carried thereby and having a portion extending into the casingfor interengagement wit the aforesaid member 10 thereby to actuate themember and retain WILLIAM E. OOAKLEY.

